#66C544 Color
#66C544 is rgb(102, 197, 68) in RGB and hsl(104, 53%, 52%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#66C544
HEX
#66C544RGB
rgb(102, 197, 68)HSL
hsl(104, 53%, 52%)HSV
hsv(104, 65%, 77%)OKLCH
oklch(73.9% 0.189 138.6)CMYK
cmyk(48%, 0%, 65%, 23%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66C544 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.18:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.63:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66C544 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66C544, useful for hover states, backgrounds, and text variants.